Package org.drasyl.handler.remote

Class LocalNetworkDiscovery

java.lang.Object

io.netty.channel.ChannelHandlerAdapter

io.netty.channel.ChannelInboundHandlerAdapter

io.netty.channel.ChannelDuplexHandler

org.drasyl.handler.remote.LocalNetworkDiscovery

All Implemented Interfaces:

io.netty.channel.ChannelHandler, io.netty.channel.ChannelInboundHandler, io.netty.channel.ChannelOutboundHandler

public class LocalNetworkDiscovery
extends io.netty.channel.ChannelDuplexHandler

This handler, along with the UdpMulticastServer, is used to discover other nodes on the local network.

For this purpose, the UdpMulticastServer joins a multicast group and forwards received DiscoveryMessages to this handler, which thus becomes aware of other nodes in the local network. In case no DiscoveryMessage has been received for a longer period of time, the other node is considered stale.

In addition, this handler periodically sends a DiscoveryMessage messages to a multicast group so that other nodes become aware of this node.

See Also:

• UdpMulticastServer

Nested Class Summary

Nested classes/interfaces inherited from interface io.netty.channel.ChannelHandler

io.netty.channel.ChannelHandler.Sharable

Constructor Summary

Constructors

Constructor	Description
LocalNetworkDiscovery(int networkId, Duration pingInterval, Duration pingTimeout, IdentityPublicKey myPublicKey, ProofOfWork myProofOfWork)
LocalNetworkDiscovery(Map<DrasylAddress,org.drasyl.handler.remote.LocalNetworkDiscovery.Peer> peers, IdentityPublicKey myPublicKey, ProofOfWork myProofOfWork, Duration pingInterval, Duration pingTimeout, int networkId, io.netty.util.concurrent.Future<?> scheduledPingFuture)

Method Summary

Modifier and Type	Method	Description
void	channelActive(io.netty.channel.ChannelHandlerContext ctx)
void	channelInactive(io.netty.channel.ChannelHandlerContext ctx)
void	channelRead(io.netty.channel.ChannelHandlerContext ctx, Object msg)
void	write(io.netty.channel.ChannelHandlerContext ctx, Object msg, io.netty.channel.ChannelPromise promise)

Methods inherited from class io.netty.channel.ChannelDuplexHandler

bind, close, connect, deregister, disconnect, flush, read

Methods inherited from class io.netty.channel.ChannelInboundHandlerAdapter

channelReadComplete, channelRegistered, channelUnregistered, channelWritabilityChanged, exceptionCaught, userEventTriggered

Methods inherited from class io.netty.channel.ChannelHandlerAdapter

ensureNotSharable, handlerAdded, handlerRemoved, isSharable

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface io.netty.channel.ChannelHandler

handlerAdded, handlerRemoved

Constructor Details

LocalNetworkDiscovery

public LocalNetworkDiscovery(Map<DrasylAddress,org.drasyl.handler.remote.LocalNetworkDiscovery.Peer> peers,
 IdentityPublicKey myPublicKey,
 ProofOfWork myProofOfWork,
 Duration pingInterval,
 Duration pingTimeout,
 int networkId,
 io.netty.util.concurrent.Future<?> scheduledPingFuture)

LocalNetworkDiscovery

public LocalNetworkDiscovery(int networkId,
 Duration pingInterval,
 Duration pingTimeout,
 IdentityPublicKey myPublicKey,
 ProofOfWork myProofOfWork)

Method Details

channelRead

public void channelRead(io.netty.channel.ChannelHandlerContext ctx,
 Object msg)

Specified by:

channelRead in interface io.netty.channel.ChannelInboundHandler

Overrides:

channelRead in class io.netty.channel.ChannelInboundHandlerAdapter

write

public void write(io.netty.channel.ChannelHandlerContext ctx,
 Object msg,
 io.netty.channel.ChannelPromise promise)

Specified by:

write in interface io.netty.channel.ChannelOutboundHandler

Overrides:

write in class io.netty.channel.ChannelDuplexHandler

channelActive

public void channelActive(io.netty.channel.ChannelHandlerContext ctx)

Specified by:

channelActive in interface io.netty.channel.ChannelInboundHandler

Overrides:

channelActive in class io.netty.channel.ChannelInboundHandlerAdapter

channelInactive

public void channelInactive(io.netty.channel.ChannelHandlerContext ctx)

Specified by:

channelInactive in interface io.netty.channel.ChannelInboundHandler

Overrides:

channelInactive in class io.netty.channel.ChannelInboundHandlerAdapter